名词
中文翻译：双重的
同义词：
['double', 'quadruped', 'twofold']
例句：
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1. The company has doubled its profits in the past year.
这家公司过去一年的利润翻了一番。
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2. He decided to double his investment in the stock market.
他决定将他在股市的投资翻一番。
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3. The teacher asked us to double our efforts to improve our grades.
老师要求我们加倍努力提高成绩。